precalculus

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For the Function, y= x(x-4)(x+8)

Y-intercept is:
X-intercept is:

  • precalculus -

    when x = 0
    y = 0
    That is the y axis intecept

    when y = 0
    x = -8, 0 or 4
    Those are the x axis intercepts.
    Since it is a cubic it is likely to cross the x axis three times.

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